Estimation in two-stage sampling of equal clusters with subsampling the nonrespondents. – G. A. Udofia
We consider estimation of the mean and variance in two-stage sampling of equal clusters with large sizes. The subgroups of respondents in the different clusters are assumed to be equal. An extension of the sample mean to the nonoresponse group is obtained by combining means of subsamples of nonrespondents in each of the selected clusters. The estimation procedure is illustrated with data from a survey of fishing communities in Cross River State, Nigeria.